| Starter | Tm | Tier | Game |
|---|---|---|---|
| Whitey Ford | NYA | 11.77 | 196406270_DET_NYA |
| Don Drysdale | LAN | 9.34 | 196406280_LAN_SFN |
| Juan Marichal | SFN | 3.99 | 196406270_LAN_SFN |
| Dean Chance | ANA | 3.62 | 196406270_OAK_ANA |
| Chris Short | PHI | 3.22 | 196406281_PHI_SLN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Jack Fisher | NYN | -2.25 | 196406290_NYN_SFN |
| Phil Regan | DET | -2.01 | 196406290_DET_TEX |
| Ray Sadecki | SLN | -1.83 | 196406282_PHI_SLN |
| Bill Monbouquette | BOS | -1.68 | 196406282_CLE_BOS |
| Barry Latman | ANA | -1.26 | 196406280_OAK_ANA |
Based on accumulated WAA for this season up to 1964-06-29.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +003+ | 4.93 | Don Drysdale | 153.7 | LAN |
| +004+ | 4.72 | Sandy Koufax | 122.7 | LAN |
| +005+ | 4.65 | Whitey Ford | 133.3 | NYA |
| +006+ | 4.13 | Dean Chance | 102.3 | ANA |
| +007+ | 4.09 | Chris Short | 85 | PHI |
| +012+ | 3.76 | Jim Bunning | 115.7 | PHI |
| +018+ | 3.15 | Jack Kralick | 105 | CLE |
| +019+ | 3.12 | Bob Gibson | 116.3 | SLN |
| +020+ | 3.08 | Juan Pizarro | 97.7 | CHA |
| +021+ | 2.96 | Juan Marichal | 134.3 | SFN |
| +023+ | 2.94 | Ron Herbel | 85 | SFN |
| +032+ | 2.59 | Gary Peters | 111.7 | CHA |
| +034+ | 2.53 | Robin Roberts | 110.3 | BAL |
| +039+ | 2.38 | Dick Ellsworth | 135 | CHN |
| +040+ | 2.36 | Jim Maloney | 108 | CIN |
| +041+ | 2.32 | Roger Craig | 80.3 | SLN |
| +048+ | 2.04 | Turk Farrell | 105 | HOU |
| +055+ | 1.93 | Claude Osteen | 111.3 | TEX |
| +056+ | 1.92 | Dave Wickersham | 117 | DET |
| +070+ | 1.65 | Joe Gibbon | 65.7 | PIT |
| +071+ | 1.64 | Tony Cloninger | 99.3 | ATL |
| +074+ | 1.62 | Hank Fischer | 89.3 | ATL |
| +078+ | 1.57 | Bob Bruce | 89.7 | HOU |
| +083+ | 1.52 | Vern Law | 96 | PIT |
| +084+ | 1.5 | Bo Belinsky | 83.3 | ANA |
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